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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4422) Convert all time interval measurements to System.nanoTime()
Date Mon, 27 Feb 2017 04:54:45 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4422?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885129#comment-15885129
] 

ASF GitHub Bot commented on FLINK-4422:
---------------------------------------

GitHub user jinmingjian opened a pull request:

    https://github.com/apache/flink/pull/3421

    [FLINK-4422] Convert all time interval measurements to System.nanoTime() - flink-connector-kafka-0.9

    Thanks for contributing to Apache Flink. Before you open your pull request, please take
the following check list into consideration.
    If your changes take all of the items into account, feel free to open your pull request.
For more information and/or questions please refer to the [How To Contribute guide](http://flink.apache.org/how-to-contribute.html).
    In addition to going through the list, please provide a meaningful description of your
changes.
    
    - [x] General
      - The pull request references the related JIRA issue ("[FLINK-XXX] Jira title text")
      - The pull request addresses only one issue
      - Each commit in the PR has a meaningful commit message (including the JIRA id)
    
    - [ ] Documentation
      - Documentation has been added for new functionality
      - Old documentation affected by the pull request has been updated
      - JavaDoc for public methods has been added
    
    - [x] Tests & Build
      - Functionality added by the pull request is covered by tests
      - `mvn clean verify` has been executed successfully locally or a Travis build has passed


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/jinmingjian/flink FLINK-4422-4

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/3421.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3421
    
----
commit 963e0dab8407ed157c681b3701eb5143e3baf6bf
Author: Jin Mingjian <jin.phd@gmail.com>
Date:   2017-02-27T04:52:52Z

    [FLINK-4422] Convert all time interval measurements to System.nanoTime() - flink-connector-kafka-0.9

----


> Convert all time interval measurements to System.nanoTime()
> -----------------------------------------------------------
>
>                 Key: FLINK-4422
>                 URL: https://issues.apache.org/jira/browse/FLINK-4422
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: Stephan Ewen
>            Assignee: Jin Mingjian
>            Priority: Minor
>
> In contrast to {{System.currentTimeMillis()}}, {{System.nanoTime()}} is monotonous. To
measure delays and time intervals, {{System.nanoTime()}} is hence reliable, while {{System.currentTimeMillis()}}
is not.



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